Lemon Ice

this is from Cook's Illustrated

• Ready In: 9 hrs
• Yields: 4 cups

Ingredients

• 12  ounces  frozen lemonade concentrate
• 3  cups  ice cubes
• 1  cup water
• 1⁄3 cup sugar

Directions

1. process all ingredients in a food processor or blender till smooth.
2. pour mixture into a 13x8" pan.and freeze for 45 minutes --
3. process mixture in a food processor and process til smooth.
4. return to pan and freeze 8 hours.